Hi Dick - there are so many different ways of playing the five string banjo that its almost impossible to separate one player from another. The advice given by most of the contributors is good - basically play the way that you feel comfortable with, or like me develop your own style. I play mainly melody and use my thumb to play most of the melody lines and augment with index finger either brushing up or down to play the full chord. I have limited use of the other fingers due to arthritis.
I also found some new style picks from the old tyme music company that will fit the fingers either way round so you can use them in a variety of ways. I find them great

Have fun and a good New year
Pete